90754193 has 2 divisors, whose sum is σ = 90754194. Its totient is φ = 90754192.

The previous prime is 90754187. The next prime is 90754201. The reversal of 90754193 is 39145709.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82591744 + 8162449 = 9088^2 + 2857^2 .

It is a cyclic number.

It is not a de Polignac number, because 90754193 - 2⁶ = 90754129 is a prime.

It is not a weakly prime, because it can be changed into another prime (90754493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45377096 + 45377097.

It is an arithmetic number, because the mean of its divisors is an integer number (45377097).

Almost surely, 2^90754193 is an apocalyptic number.

It is an amenable number.

90754193 is a deficient number, since it is larger than the sum of its proper divisors (1).

90754193 is an equidigital number, since it uses as much as digits as its factorization.

90754193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 90754193 is about 9526.4995145121. The cubic root of 90754193 is about 449.3887883057.

The spelling of 90754193 in words is "ninety million, seven hundred fifty-four thousand, one hundred ninety-three".